src/mesa/state_tracker/st_cb_program.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28  /*
  29   * Authors:
  30   *   Keith Whitwell <keithw@vmware.com>
  31   */
  32
  33 #include "main/glheader.h"
  34 #include "main/macros.h"
  35 #include "main/enums.h"
  36 #include "main/shaderapi.h"
  37 #include "program/prog_instruction.h"
  38 #include "program/program.h"
  39
  40 #include "cso_cache/cso_context.h"
  41 #include "draw/draw_context.h"
  42
  43 #include "st_context.h"
  44 #include "st_debug.h"
  45 #include "st_program.h"
  46 #include "st_mesa_to_tgsi.h"
  47 #include "st_cb_program.h"
  48 #include "st_glsl_to_ir.h"
  49 #include "st_atifs_to_tgsi.h"
  50 #include "st_util.h"
  51
  52
  53 /**
  54  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
  55  * fragment program.
  56  */
  57 static struct gl_program *
  58 st_new_program(struct gl_context *ctx, GLenum target, GLuint id,
  59                bool is_arb_asm)
  60 {
  61    switch (target) {
  62    case GL_VERTEX_PROGRAM_ARB: {
  63       struct st_vertex_program *prog = rzalloc(NULL, struct st_vertex_program);
  64       return _mesa_init_gl_program(&prog->Base.Base, target, id, is_arb_asm);
  65    }
  66    case GL_TESS_CONTROL_PROGRAM_NV:
  67    case GL_TESS_EVALUATION_PROGRAM_NV:
  68    case GL_GEOMETRY_PROGRAM_NV:
  69    case GL_FRAGMENT_PROGRAM_ARB:
  70    case GL_COMPUTE_PROGRAM_NV: {
  71       struct st_program *prog = rzalloc(NULL, struct st_program);
  72       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
  73    }
  74    default:
  75       assert(0);
  76       return NULL;
  77    }
  78 }
  79
  80
  81 /**
  82  * Called via ctx->Driver.DeleteProgram()
  83  */
  84 static void
  85 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
  86 {
  87    struct st_context *st = st_context(ctx);
  88    struct st_program *stp = st_program(prog);
  89
  90    if (prog->Target == GL_VERTEX_PROGRAM_ARB)
  91       st_release_vp_variants(st, stp);
  92    if (prog->Target == GL_FRAGMENT_PROGRAM_ARB)
  93       st_release_fp_variants(st, stp);
  94    else
  95       st_release_common_variants(st, stp);
  96
  97    if (stp->glsl_to_tgsi)
  98       free_glsl_to_tgsi_visitor(stp->glsl_to_tgsi);
  99
 100    /* delete base class */
 101    _mesa_delete_program( ctx, prog );
 102 }
 103
 104 /**
 105  * Called via ctx->Driver.ProgramStringNotify()
 106  * Called when the program's text/code is changed.  We have to free
 107  * all shader variants and corresponding gallium shaders when this happens.
 108  */
 109 static GLboolean
 110 st_program_string_notify( struct gl_context *ctx,
 111                                            GLenum target,
 112                                            struct gl_program *prog )
 113 {
 114    struct st_context *st = st_context(ctx);
 115    struct st_program *stp = (struct st_program *) prog;
 116
 117    if (target == GL_FRAGMENT_PROGRAM_ARB ||
 118        target == GL_FRAGMENT_SHADER_ATI) {
 119       if (target == GL_FRAGMENT_SHADER_ATI) {
 120          assert(stp->ati_fs);
 121          assert(stp->ati_fs->Program == prog);
 122
 123          st_init_atifs_prog(ctx, prog);
 124       }
 125
 126       st_release_fp_variants(st, stp);
 127       if (!stp->shader_program && /* not GLSL->NIR */
 128           !st_translate_fragment_program(st, stp))
 129          return false;
 130    } else if (target == GL_VERTEX_PROGRAM_ARB) {
 131       st_release_vp_variants(st, stp);
 132       if (!stp->shader_program && /* not GLSL->NIR */
 133           !st_translate_vertex_program(st, stp))
 134          return false;
 135    } else {
 136       st_release_common_variants(st, stp);
 137       if (!stp->shader_program && /* not GLSL->NIR */
 138           !st_translate_common_program(st, stp))
 139          return false;
 140    }
 141
 142    st_finalize_program(st, prog);
 143    return GL_TRUE;
 144 }
 145
 146 /**
 147  * Called via ctx->Driver.NewATIfs()
 148  * Called in glEndFragmentShaderATI()
 149  */
 150 static struct gl_program *
 151 st_new_ati_fs(struct gl_context *ctx, struct ati_fragment_shader *curProg)
 152 {
 153    struct gl_program *prog = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
 154          curProg->Id, true);
 155    struct st_program *stfp = (struct st_program *)prog;
 156    stfp->ati_fs = curProg;
 157    return prog;
 158 }
 159
 160 static void
 161 st_max_shader_compiler_threads(struct gl_context *ctx, unsigned count)
 162 {
 163    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 164
 165    if (screen->set_max_shader_compiler_threads)
 166       screen->set_max_shader_compiler_threads(screen, count);
 167 }
 168
 169 static bool
 170 st_get_shader_program_completion_status(struct gl_context *ctx,
 171                                         struct gl_shader_program *shprog)
 172 {
 173    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 174
 175    if (!screen->is_parallel_shader_compilation_finished)
 176       return true;
 177
 178    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 179       struct gl_linked_shader *linked = shprog->_LinkedShaders[i];
 180       void *sh = NULL;
 181
 182       if (!linked || !linked->Program)
 183          continue;
 184
 185       switch (i) {
 186       case MESA_SHADER_VERTEX:
 187          if (st_program(linked->Program)->vp_variants)
 188             sh = st_program(linked->Program)->vp_variants->driver_shader;
 189          break;
 190       case MESA_SHADER_FRAGMENT:
 191          if (st_program(linked->Program)->fp_variants)
 192             sh = st_program(linked->Program)->fp_variants->driver_shader;
 193          break;
 194       case MESA_SHADER_TESS_CTRL:
 195       case MESA_SHADER_TESS_EVAL:
 196       case MESA_SHADER_GEOMETRY:
 197       case MESA_SHADER_COMPUTE:
 198          if (st_program(linked->Program)->variants)
 199             sh = st_program(linked->Program)->variants->driver_shader;
 200          break;
 201       }
 202
 203       unsigned type = pipe_shader_type_from_mesa(i);
 204
 205       if (sh &&
 206           !screen->is_parallel_shader_compilation_finished(screen, sh, type))
 207          return false;
 208    }
 209    return true;
 210 }
 211
 212 /**
 213  * Plug in the program and shader-related device driver functions.
 214  */
 215 void
 216 st_init_program_functions(struct dd_function_table *functions)
 217 {
 218    functions->NewProgram = st_new_program;
 219    functions->DeleteProgram = st_delete_program;
 220    functions->ProgramStringNotify = st_program_string_notify;
 221    functions->NewATIfs = st_new_ati_fs;
 222    functions->LinkShader = st_link_shader;
 223    functions->SetMaxShaderCompilerThreads = st_max_shader_compiler_threads;
 224    functions->GetShaderProgramCompletionStatus =
 225       st_get_shader_program_completion_status;
 226 }